Geographia Polonica Vol. 90 No. 1 (2017)
convection inhibition ; atmospheric instability indices ; Poland ; upper air sounding
The paper identifies mechanisms that potentially inhibit convection at a time when extreme values of selected atmospheric instability indices are recorded. The study involved six indices (LI, SI, CAPE, KI, SWEAT, TTI). Data sources involved records from three Polish data stations collecting upper air soundings and covered the period 2005-2014. Additional data were obtained from SYNOP codes on present and past weather and reports on severe meteorological phenomena from the European Severe Weather Database. The methodology adopted allowed the selection of 26 cases where no convective phenomena were observed despite extreme atmospheric instability. A detailed analysis demonstrated that the occurrence of isothermal or inversion layers in the lower and middle troposphere were the most frequent mechanisms inhibiting the vertical air movement. Convection was also inhibited when the area was free from the influence of atmospheric fronts, convergence zones, lowpressure troughs or when high altitudes of LCL occurred.
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Instytut Geografii i Przestrzennego Zagospodarowania Polskiej Akademii Nauk
Unia Europejska. Europejski Fundusz Rozwoju Regionalnego ; Program Operacyjny Innowacyjna Gospodarka, lata 2010-2014, Priorytet 2. Infrastruktura strefy B + R
25 mar 2021
15 mar 2017
1970
https://rcin.org.pl./publication/81576
Nazwa wydania | Data |
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Palarz A., Celiński-Mysław D. : Factors inhibiting convection under conditions of extreme atmospheric instability | 25 mar 2021 |
Banach, Anna Kozakiewicz, Anna Kozakiewicz, Michał Liro, Anna
Rybak, Jan Igor
Muszyński, Wojciech Jerzy (1972– )
Chimiak, Galia
Chrzanowski, Ignacy (1866–1940)
Dante Alighieri (1265–1321) Kowalski, Jan (1871–1942) Doré, Gustave (1832–1883) Bianchi, Brunone (1803–1869)